Artifact when loading Xfce with compositing turned on

Submitted by xst..@..il.com

Assigned to Olivier Fourdan @olivier

Link to original bug (#8679)

Description

When logging into Xfce, on any distro, with compositing turned on, usually in the top left corner of the screen there is a small weird gray box that goes away after a while. This is a very trivial thing, but it is a bug.

This happens regardless of X.org version or video driver. Video driver used was xf86-video-intel 2.18 and X.org 1.12.0. Graphics chipset is the G41.

Version: 4.8.3